4978395938795 has 16 divisors (see below), whose sum is σ = 5979102400512. Its totient is φ = 3979366644960.

The previous prime is 4978395938779. The next prime is 4978395938851. The reversal of 4978395938795 is 5978395938794.

It is not a de Polignac number, because 4978395938795 - 2⁴ = 4978395938779 is a prime.

It is a super-2 number, since 2×4978395938795² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28962674 + ... + 29134056.

It is an arithmetic number, because the mean of its divisors is an integer number (373693900032).

Almost surely, 2^{4978395938795} is an apocalyptic number.

4978395938795 is a deficient number, since it is larger than the sum of its proper divisors (1000706461717).

4978395938795 is a wasteful number, since it uses less digits than its factorization.

4978395938795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176242.

The product of its digits is 18517766400, while the sum is 86.

Subtracting 4978395938795 from its reverse (5978395938794), we obtain a palindrome (999999999999).

The spelling of 4978395938795 in words is "four trillion, nine hundred seventy-eight billion, three hundred ninety-five million, nine hundred thirty-eight thousand, seven hundred ninety-five".